mayor ed lee and the mayor of green bay, wisconsin, are making a friendly wager on the game with an educational twist. if the 49ers win, green bay will sponsor special tours for hundreds of san francisco kids at the exploratorium science museum when it opens at its new home on pier 15 in april. if the niners lose, san francisco will sponsor a free admission day at the new children's museum of green bay. the bet includes an exchange of local delicacies. >>> it could be one of the coldest mornings we' had in a while here, christina. >> indeed it could be. indeed it could be. good morning to you, laura and marla. it's chilly out there. a couple more 20s popping up. napa at 29 degrees. 29 in gilroy. you're right at freezing in concord and livermore. it's cold enough for frost throughout all of your interior valleys and not so much the case in san francisco. we'll continue to drop off as we head through the next hour. highs ramping up to low 50s. you'll need your coat. the full forecast is just moments away. let's check the drive with mike. >> we'll take a second to get over to my maps in just a sec